Djokovic's Australian Open preparations suffer hiccup
January 2, 2013 -- Updated 1733 GMT (0133 HKT)
World number one Novak Djokovic slipped to a surprise defeat against Australia's Bernard Tomic at the Hopman Cup.
- World number one Novak Djokovic beaten by Australia's Bernard Tomic at Hopman Cup
- Serb star beaten 6-4 6-4 by world number 52
- Djokovic bidding to win his third consecutive Australian Open title later this month
- Victoria Azarenka into last eight in Brisbane; Sloane Stephens to face Serena Williams
(CNN) -- Novak Djokovic's Australian Open preparations have suffered a hiccup after he was beaten by home favorite Bernard Tomic at the Hopman Cup in Perth.
The World No.1, who won in Abu Dhabi last week, was beaten 6-4 6-4 by Tomic as the young Australian eased to his first win over Djokovic in five attempts.
Djokovic injury scare
The 20-year-old, who is ranked 52 in the world, hit 25 winners to Djokovic's 12 and the Serbian star, who will attempt to win a third consecutive Australian Open later this month, admitted that he needed more time to get to grips with conditions after arriving in Perth just a few days ago.
"I knew I was coming here to Australia very late and it takes me time to get used to it," Djokovic told reporters.
Funny: Open Court outtakes
Clijsters reflects on career, family
Tennis stars face quickfire challenge
"I know I am not close to my maximum, but I expected that. I was always on the back foot and he was the better player."
Djokovic retains Abu Dhabi title
Meanwhile, Gilles Simon continued his preparations for the first Grand Slam of 2013, which is held in Melbourne between 14 and 27 January, by reaching the Brisbane International's second round.
The Frenchman edged out Colombia's Alejandro Falla 7-6 7-6 in intense heat.
Simon, who reached the semifinals in Brisbane last year, will play Marcos Baghdatis in the next round after the Cypriot defeated sixth-seeded German Florian Mayer 6-4 6-2.
Japan's Kei Nishikori reached the last eight thanks to a 6-3 6-3 win over Spain's Tommy Robredo, while Alexandr Dolgopolov of Ukraine progressed when Finland's Jarkko Nieminen retired due to a migraine with the Ukrainian ahead 6-2 4-1.
Injured Sharapova pulls out
In the women's tournament, world number one Victoria Azarenka clinched her place in the quarterfinals with a 6-3 6-3 win over Germany's Sabine Lisicki.
"I knew what kind of player she is and I felt like she did improve from maybe the last time we played," Azarenka told reporters..
"I just knew that there is something that I have to deal with. So I was prepared to take some bullets today.
"But I just tried to stay focused on executing my game. I knew she was going to make some, she was going to miss some, so I just had to stay with her and look for my chance."
Azarenka will now meet qualifier Ksenia Pervak of Kazakhstan in the quarter-finals.
U.S. star Sloane Stephens set up a last eight clash with compatriot Serena Williams following her 6-3 6-4 win over Sweden's Sofia Arvidsson.
Germany's Angelique Kerber will play Russia's Anastasia Pavlyuchenkova after she overcame Puerto Rica's Monica Puig 3-6 6-4 7-6.
Today's five most popular stories
Part of complete coverage on
December 16, 2014 -- Updated 1208 GMT (2008 HKT)
Rafael Nadal's body might be giving him a few problems, but his mind remains as strong as ever. Will the Spaniard add to his haul of 14 grand slam titles?
November 24, 2014 -- Updated 1342 GMT (2142 HKT)
A year that began in uncertainty for Roger Federer ended with a historic title for the 17-time grand slam champion and his country.
November 27, 2014 -- Updated 1716 GMT (0116 HKT)
The Scot has served up a few changes to his support team in 2014 but there's one person who isn't going anywhere -- his new fiancée Kim Sears.
September 11, 2014 -- Updated 1248 GMT (2048 HKT)
His distinctive crocodile logo is seen on clothing all over the world, but Rene Lacoste also left a lasting legacy in the development of tennis.
September 9, 2014 -- Updated 0636 GMT (1436 HKT)
Marin Cilic follows in the footsteps of his coach Goran Ivanicevic by claiming a grand slam crown for Croatia, winning the U.S. Open.
September 14, 2014 -- Updated 1334 GMT (2134 HKT)
Serena Williams is without peer in the modern women's game and now she is on a par with two American tennis legends from the past.
September 2, 2014 -- Updated 1321 GMT (2121 HKT)
Over the course of her remarkable life, Althea Gibson was many things to many people -- but it was tennis where she really left her mark.
August 27, 2014 -- Updated 1145 GMT (1945 HKT)
Canada and tennis? Really? Yup. The North American tennis power balance is swinging away from the States.
August 21, 2014 -- Updated 1252 GMT (2052 HKT)
As a player he was as fiery as his hair -- and as Novak Djokovic's coach, Boris Becker says he has to battle to keep his emotions in check.
August 20, 2014 -- Updated 1102 GMT (1902 HKT)
Tennis great Boris Becker says he was stunned by the level of criticism he received after being appointed as Novak Djokovic's coach.
July 25, 2014 -- Updated 1101 GMT (1901 HKT)
"I didn't cry once when I practiced in front of the mirror," says Martin Emmrich. But the nerves kicked in when he got down on one knee on court.
June 30, 2014 -- Updated 1135 GMT (1935 HKT)
When Agnieszka Radwanska refused to look her opponent in the eye after losing at Wimbledon, it raised more than eyebrows.
June 23, 2014 -- Updated 0114 GMT (0914 HKT)
It's 10 years since a teenage Maria Sharapova became the darling of Wimbledon's hallowed Center Court, launching herself as a star.
May 23, 2014 -- Updated 0746 GMT (1546 HKT)
He's regularly voted France's favorite famous person, but many of the nation's youth have "no idea" about his glorious sporting past
April 29, 2014 -- Updated 1555 GMT (2355 HKT)
Five-time grand slam champion Martina Hingis has followed her mom into a coaching role, setting up a new tennis academy in Barcelona, Spain.